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The Diversified ( ATC ) TBU240APA (240vac) is a TDR style timer which can be plugged in using an 11-pin mounting socket. (Use p/n 8258600 or OT-11) for surface/DIN rail socket). The ATC TBU TDR is a multi-mode timer with on-delay, off-delay and Interval timing with a delayed relay. The ATC Diversified TDR offers Timing Ranges from 102.3 Secs. to 436.5 minutes in 4 jumper selectable range. The contacts are rated 10 amps and are DPDT. This ATC TDR has UL, CSA, and cUL approvals. The ATC/Diversifed p/n is TBU240APA.

The TBU Series offers the accuracy of DIP SWITCH delay ranges “A” through “E” as well as the user programmable model, DIP SWITCH delay range “P,” with 4 different ranges obtainable by either leaving 2 designated terminals unconnected or by connecting them to the appropriate terminals as shown below. The 6 most common modes of operation are easily selected by the use of one or more jumpers applied externally between designated base pins as outlined below. These features, coupled with 6 most popular supply voltages, make this timer one of the most versatile and cost effective Time Delay Relays available today. The CMOS digital circuitry provides high accuracy, repeatability and fast reset times.